US9267623B2 - Device for providing an electrical or fluid junction - Google Patents

Device for providing an electrical or fluid junction Download PDF

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Publication number
US9267623B2
US9267623B2 US14/019,883 US201314019883A US9267623B2 US 9267623 B2 US9267623 B2 US 9267623B2 US 201314019883 A US201314019883 A US 201314019883A US 9267623 B2 US9267623 B2 US 9267623B2
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United States
Prior art keywords
plate
junction
columnar component
electrical
plane
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Expired - Fee Related, expires
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US14/019,883
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English (en)
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US20140061394A1 (en
Inventor
Andreas Druegemoeller
Hans Peter Panzer
Martin Voegelin
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SKF AB
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SKF AB
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Assigned to AKTIEBOLAGET SKF reassignment AKTIEBOLAGET SKF ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DRUEGEMOELLER, ANDREAS, PANZER, HANS PETER, VOEGELIN, MARTIN
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
    • F16L3/12—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing comprising a member substantially surrounding the pipe, cable or protective tubing
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • A47B9/20—Telescopic guides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G12/00—Accommodation for nursing, e.g. in hospitals, not covered by groups A61G1/00 - A61G11/00, e.g. trolleys for transport of medicaments or food; Prescription lists
    • A61G12/002—Supply appliances, e.g. columns for gas, fluid, electricity supply
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/107—Supply appliances
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0035—Tables or desks with features relating to adjustability or folding
    • A47B2200/005—Leg adjustment
    • A47B2200/0056—Leg adjustment with a motor, e.g. an electric motor
    • A47B2200/0059—Leg adjustment with a motor, e.g. an electric motor in telescoping table legs

Definitions

  • Embodiments of the present invention are directed to a device for providing one or more electrical or fluid junctions (connections) for a structure, and more specifically, to a device for providing one or more electrical or fluid junctions for column-shaped components like lifting columns that having hollow profiles.
  • Lifting columns which may sometimes be referred to as telescopic columns or telescopic actuators, are used in a wide variety of medical devices, for example, in wheelchairs, examination tables, patient beds, and medical equipment. They are also used outside the medical field, for example, in industrial applications for facilitating movement of machine parts or other components along a direction of movement.
  • each plug must be specified at the time the column is ordered.
  • plugs which are to be accessible from the side of a column are integrated into the profile of the column when made. This means that the hollow profile section must be adapted or modified for each specific use. After the column is completed, it may be difficult for impossible to add or remove plugs, junctions or connectors to/from a column.
  • a device for providing an electrical or fluid junction comprises a connecting structure and a junction structure.
  • the connecting structure is formed such that it is connectable to an end of a column or columnar component having a hollow profile.
  • the junction structure is connected to the connecting structure and has at least one opening for providing an electrical or fluid junction for an external plug and a further opening for guiding an electrical or fluid line from the electrical or fluid junction into the column.
  • a device for providing an electrical or fluid junction is based on the recognition that it is possible, in a simple manner, to attach a junction structure to one or both ends of a columnar component via a connecting structure on the columnar component.
  • This offers the possibility of providing any number and type of electrical or fluid junction possibilities via the junction structure.
  • the columnar component can, for example, always have the same appearance, and thus does not require different manufacturing processes as would be required in order to integrate junctions into a tube-shaped part of a column.
  • the interior of the column can be reached in a simple manner via the routing opening with the line leading away from the electrical or fluid junction on the end of the column in order to further guide the line in the interior of the column in a manner that is not externally visible.
  • a device for providing an electrical or fluid junction based on the principle described above can be disposed on one or both ends of the column and can have any number and any type of electrical or fluid junctions. This arrangement provides a high degree of design flexibility for providing electrical or fluid junctions in columnar components. In addition, embodiments of the invention provide a more uniform manufacturing process which may reduce manufacturing costs for columnar components.
  • One or more additional electrical or fluid junctions can be added as accessories to the column by a device based on the described concept. Such accessories can also be added after the manufacturing process of the column on both sides (ends) of the column.
  • the device for providing an electrical or fluid junction (or, in short, junction device) can also be ordered by the user if a junction is needed during the service life of the column, that is, long after the manufacturing of the column is complete.
  • the connecting structure is substantially plate-shaped, and is connected to the junction structure via a part of an edge of the plate.
  • the junction structure extends only into one of two half-cavities defined by a plate plane of the connecting structure which faces away from the columnar component so that no part of the device protrudes into the half-cavity facing away from the columnar component.
  • the connecting structure can form a flat end of the columnar component so that a tabletop or another component to be carried/supported by the column can be attached to the column on this end without the device for providing the electrical or fluid junction being in the way.
  • the connecting structure has at least partially angled edges so that the device, when mounted on the column, is held in its position on the end of the column in at least one direction of movement by the angled edges.
  • the assembly can be greatly simplified by the angled edges.
  • the device can also be positioned using pins or similar in openings of an end part.
  • Some exemplary embodiments relate to a lifting column including a device for providing an electrical or fluid junction based on the described concept.
  • the lifting column corresponds here to the columnar component having a hollow profile, and the device is connected to an end of the lifting column via the connecting structure so that the junction structure is located on a side surface of the lifting column and extends towards the other end of the lifting column.
  • FIG. 1 shows a schematic three-dimensional view of a device for providing an electrical or fluid junction after connection to a columnar component.
  • FIG. 2 shows a schematic side view of a device for providing an electrical junction and a columnar component prior to the connection.
  • FIG. 3 shows a schematic side view of a device for providing an electrical junction and a columnar component after the connection.
  • a fluid junction is a connection point for a fluid medium, i.e. a liquid or a gas such as water or air.
  • a fluid medium i.e. a liquid or a gas such as water or air.
  • the exemplary embodiments are described in the context of a device for providing an electrical junction. However, it is clear that the embodiments provided can likewise be used in a corresponding manner for a device for providing a fluid junction.
  • the opening for routing an electrical line in the case of an electrical junction is an opening for routing a wire or cable or similar structure
  • a fluid junction is, for example, an opening for routing a fluid line such as a pipe or a tube or a conduit for a liquid or a gas.
  • FIGS. 1-3 show different views of a device 100 for providing an electrical junction according to an exemplary embodiment.
  • the device 100 comprises a connecting structure 110 and a junction structure 120 .
  • the connecting structure 110 is connectable to an end of a columnar component 102 having a hollow profile.
  • the junction structure 120 is connected to the connecting structure 110 and has at least one opening 122 for providing an electrical junction for an external plug and a further opening 124 for routing a cable from the electrical junction into the columnar component 102 .
  • the device 100 is connectable to an end of the columnar component 102 via the connecting structure 110 .
  • This allows electrical junctions to be provided on the column in a simple manner without having to change or post-process the structure of the columnar component 102 .
  • the device 100 can be attached as an accessory to one or both ends of the columnar component 102 .
  • a cable pathway inside the column 102 which is not externally visible, allows a cable to be routed from opening 124 and an electrical junction in the junction structure 120 to the other end of the columnar component 102 , and from there into a cable channel, a further component, or also simply a wall outlet.
  • the device 100 can be connected to the columnar component 102 during or after manufacture of the columnar component 102 , or also later by the user. Furthermore, any number and/or type of electrical junctions can be integrated into the junction structure 120 , and this improves design flexibility.
  • the connecting structure 110 can be connected to the end of the columnar component 102 simply by placing or setting it onto the end part 104 of the columnar component 102 , or generally onto the opening of the hollow profile and/or by the use of appropriate latching/locking connections or by the use of connectors such as screws, rivets, or nails.
  • a columnar component 102 having a hollow profile can be any type of elongated component, that is, a component having a significantly greater extension (more than twice, five times, ten times, or more) in one direction as in the other two directions, which columnar component 102 has a cavity extending between the two ends in its longitudinal direction.
  • This cavity can have a constant cross-section between the two ends of the columnar component (e.g. square or rectangular), but can also have a variable cross-section (due to internal bracing/ribbing or other structural measures, for example).
  • the cross-section of the cavity is larger than the diameter of a cable.
  • the outer contour of a cross-section, orthogonal to the longitudinal axis, can vary over the length of the columnar component 102 .
  • the cross section of an end of the columnar component 102 to be attached to the ground or floor can taper towards an opposite end.
  • the basic shape of the columnar component 102 may vary, for example, from a square cross section at one end, to a round cross-section in the center, and back to a square cross-section at its other end, depending on the use to which the columnar component will be put.
  • the cross section can also be constant over a large part of the length of the columnar component 102 (e.g. more than half of the length, more than 80% of the length, or more) so that the columnar component 102 can be manufactured inexpensively.
  • the junction structure 120 has at least two openings 122 , 124 .
  • the first opening 122 provides an electrical junction for an external plug. That is, the first opening 122 is designed to accommodate a junction appropriate for holding the particular plug. Here the size and shape of the first opening 122 can vary depending on the type of plug or the desired electrical junction.
  • the second opening 124 is provided for routing at least one cable which extends from the electrical junction into the columnar component 102 , and can subsequently be further guided in the columnar component 102 .
  • the second opening 124 can have a different shape and size than the first opening 122 .
  • the size of the second opening 124 can, for example, be based on the number of electrical junctions provided and on the type of junctions, as well as on the connecting cables needed therefor.
  • the junction structure 120 represents a type of housing, in which externally accessible electrical junctions are housed, whose cables can be routed via an additional opening 124 at the columnar component 102 .
  • the first opening 122 for providing an electrical junction and the second opening 124 for routing a cable can be disposed on two different sides of the junction structure 120 (e.g. on two opposing sides).
  • FIGS. 1-3 show a detailed example of a device for providing an electrical junction, which example shows many optional, alternative, or additional details, such as angled edges 112 of the connecting structure 110 , holes 114 in the connecting structure 110 , an additional opening for a further electrical junction, the exact form of the connecting structure 110 and of the junction structure 120 , or also details of the profile columnar component 102 . These details are provided for the purpose of illustrating various modifications to a basic design and should not be interpreted as limiting the generality of the described concept.
  • the electrical junction and the cable routed in the columnar component 102 can be installed by an end user after the columnar component 102 is manufactured. The user can therefore determine the type of electrical or other junction that is needed, and install it without modifying the physical structure of the columnar structure 102 itself.
  • one or more electrical junctions, with or without associated cables can be installed by the manufacturer of the columnar component 102 in the openings of the device 100 for providing an electrical junction, and thus can be part of the device 100 .
  • the device 100 can already be connected to the columnar component 102 , so that the columnar component 102 can also be part of the device 100 , and the entire device can be delivered to the user as a completed columnar component having at least one electrical junction.
  • the user can also retrofit existing systems with such a device 100 for providing an electrical junction.
  • the electrical junction may comprise, for example and without limitation, a power supply connector, a network connector, a control connector, an output, an input, a junction device in general, a power supply plug of an additional accessory, or a telephone connector.
  • the connecting structure 110 may be substantially plate-shaped.
  • plate-shaped should be understood to mean a structure, which is substantially larger (more than two times, more than five times, more than ten times as large or more) in two directions of extension than in its third direction of extension, the third direction constituting the thickness of the plate.
  • the plate-shaped structure can have a substantially constant thickness (except for manufacturing and measuring tolerances).
  • a structure is substantially plate-shaped if the plate-shaped structure can also have recesses and holes, or structures at the edges of the plate-shaped part which deviate from the plate shape.
  • the connecting structure IV) can be the same thickness as, but also significantly thinner than (less than half as thick, less than a quarter as thick, or less than a tenth as thick) an extension of the junction structure 120 in the direction of the longitudinal axis of the columnar component 102 .
  • the connecting structure 110 may be end flush with the junction structure 120 on both sides, or only end flush with the junction structure 120 on the side facing away from the columnar component.
  • the connecting structure 110 can also have the same shape as the columnar component 102 .
  • the edges 112 of the connecting structure 110 can optionally or additionally be at least partially angled to help hold the device 100 in position at the end of the columnar component 102 , at least in one direction of movement (parallel to the plane of the plate), if the device 100 is connected to the columnar component 102 via the connecting structure 110 .
  • the connecting structure 110 may be connected to the junction structure 120 via a part of the edge of the plate.
  • the connection can for example be a rigid connection so that forces can be transmitted in all directions from the junction structure 120 to the connecting structure 110 and vice versa.
  • the junction structure 120 may extend only to one side of the plate plane 116 of the connecting structure 110 . In this way no part of the device 100 protrudes on the other side of the plate plane 116 where such an additional component might be mounted. In other words, the junction structure 120 can be formed such that it only protrudes out on one side through the plane formed by the plate of the connecting structure 110 , and the other side remains free. In this way components to be carried or supported, such as for example a tabletop, can be mounted on the end of the column-shaped component 102 connected to the device 100 , without the junction structure 120 being in the way.
  • the junction structure 120 can have a side surface 126 , which forms an angle of between 80 degrees and 100 degrees, e.g., 90 degrees, with one of the plate sides 118 of the connecting structure 110 .
  • an L-shaped profile can be formed by the connecting structure 110 and the side surface 126 of the junction structure 120 .
  • the plate-shaped connecting structure 110 can then at least partially cover the opening of the hollow profile of the columnar component 102 , and the side surface 126 of the junction structure 120 can abut on a side surface of the columnar component 102 , so that the junction structure 120 is stably attached to the columnar component 102 even when loaded by connected external plugs.
  • the connecting structure 110 can at least partially cover the opening of the hollow profile of the columnar component 102 at the end of the columnar component 102 .
  • the connecting structure 110 in the installed state can be an intermediate piece between the columnar component 102 and a component to be carried/supported by the columnar component 102 .
  • the connecting structure 110 can have a contour which corresponds substantially to a cross-section of the columnar component 102 , in order to be able to be used, in the installed state, as an intermediate piece.
  • “Contour” means here for example the geometry or shape of the outer edges of the plate in a plate-shaped connecting structure 110 .
  • the contour of the connecting structure 110 can be substantially rectangular if the columnar component 102 has a substantially rectangular cross-section.
  • a plate-shaped connecting structure 110 has a substantially rectangular contour with chamfered edges, which contour matches and fits with the substantially rectangular cross-section of the columnar component 102 , the cross-section of which also has chamfered edges.
  • “contour which substantially corresponds to a cross-section” means that the contour of the connecting structure 110 has a maximum difference from the outer cross-section of the columnar component 102 which is less than 10% (or 20%, 5%, or less) of a maximal cross-section width of the columnar component 102 .
  • the connecting structure 110 can have holes 114 that allow a component that is supported by the columnar component 102 to be connected thereto using connectors inserted through the holes 114 in the connecting structure 110 .
  • Screws, rivets, or nails can be used for example as the connectors.
  • the connecting structure 110 and the junction structure 120 can be manufactured from the same material or from different materials.
  • the connecting structure 110 and the junction structure 120 can be formed from a one-piece plastic part.
  • the connecting structure 110 can, for example, be a punched or stamped metal plate, and the junction structure 120 can be a plastic part connected to the metal plate.
  • the columnar component 102 may be a metal hollow profile, formed from aluminum, for example, or a plastic hollow profile.
  • the hollow profile can have an end part 104 (e.g. made from plastic), which simplifies or makes possible the routing of cables or the arrangement of electrical or circuit boards in the hollow profile of the columnar component 102 , as is shown e.g. in FIGS. 1-3 , or cover a sharp-edged end of the hollow profile.
  • the device 100 can be connected via the connecting structure 110 directly to the hollow profile or to the end part 104 of the columnar component 102 .
  • Some exemplary embodiments are directed to a lifting column including a device for providing an electrical junction according to the above-described concept.
  • the lifting column corresponds here to the columnar component 102 having a hollow profile, and the device 100 is connected via the connecting structure 110 to an end of the lifting column so that the junction structure 120 is located at a side surface of the lifting column and extends towards the other end of the lifting column, as is also shown in the example in FIGS. 1-3 .
  • Lifting columns generally comprise at least two tube-shaped or columnar components which are insertable one-into-another along a direction of movement and are thus movable. In this way the length of the lifting column can be adjusted manually or electrically.
  • the height above the ground of one of the components supported by the lifting column e.g. a table top or a patient bed
  • the lifting column can be used, for example, for laboratory tables, patient beds, wheelchairs, or generally for applications wherein the position of an object should be changeable.
  • the lifting column can optionally or additionally have an electrical board in its interior, and the electrical junction in the opening 122 of the junction structure 120 can be connected via a cable to the board in the lifting column.
  • the length of the lifting column can be electrically adjustable
  • the electrical junction can be a control junction for electrically adjusting the length of the lifting column.
  • a control panel or a remote control panel can be plugged into the electrical junction so that a user can change the length of the lifting column via the control panel or the remote control.
  • junction device which includes a junction for an IEC, RJ45, or other plug which can be added to a column without the column having to be post-processed or modified.
  • This junction device can be mounted on the upper and/or lower plate of a column.
  • the junctions can be placed in such a manner that they are accessible from the side of the column.
  • the junction device may be provided as a separate structure that can be added to a column after manufacture, the column can be manufactured as a standard product without making modifications based on the type of junction that might eventually be attached thereto.
  • the junction device can be added at the end of the production line or even by the end user. Even if the user recognizes only after ordering the column that junctions (which are accessible from the side) are required, the junctions can later be added as an accessory.
  • the accessory can also be added only on one end of the column or on both ends, which makes the design of the column very flexible.
  • aspects of the present invention have been described in the context of a device, it is to be understood that these aspects also represent a description of a corresponding method, so that a block or a component of a device is also understood as a corresponding method step or as a feature of a method step.
  • aspects which have been described in the context of or as a method step also represent a description of a corresponding block or detail or feature of a corresponding device.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • General Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nursing (AREA)
  • Mechanical Engineering (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
US14/019,883 2012-09-06 2013-09-06 Device for providing an electrical or fluid junction Expired - Fee Related US9267623B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102012215851.0 2012-09-06
DE102012215851 2012-09-06
DE102012215851.0A DE102012215851A1 (de) 2012-09-06 2012-09-06 Vorrichtung zum Bereitstellen einer elektrischen oder fluiden Anschlussstelle

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US20140061394A1 US20140061394A1 (en) 2014-03-06
US9267623B2 true US9267623B2 (en) 2016-02-23

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EP (1) EP2705774B1 (de)
DE (1) DE102012215851A1 (de)

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EP2705774B1 (de) 2017-03-08
EP2705774A1 (de) 2014-03-12
DE102012215851A1 (de) 2014-03-06

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